JPS6424682A - Channel selection display circuit for television receiver - Google Patents
Channel selection display circuit for television receiverInfo
- Publication number
- JPS6424682A JPS6424682A JP62181338A JP18133887A JPS6424682A JP S6424682 A JPS6424682 A JP S6424682A JP 62181338 A JP62181338 A JP 62181338A JP 18133887 A JP18133887 A JP 18133887A JP S6424682 A JPS6424682 A JP S6424682A
- Authority
- JP
- Japan
- Prior art keywords
- channel selection
- signal
- counter
- generated
- selection display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE:To attain cost-down by changing a channel selection display area even when number of horizontal picture elements of a picture display is changed so as to generate one channel selection display bar picture at all times to the picture display of an optional picture element number and eliminate the need for changing the frequency division ratio of a clock signal. CONSTITUTION:A clock signal 17 being N times of a synchronizing signal frequency is generated from a timing generation circuit 6 and a reset signal 18 retarded by a prescribed time from the synchronizing signal 15 is generated to activate the counter 8. When the output of the counter 8 reaches a maximum value by countup, it restores to the minimum value again, reset when the reset signal 18 is generated by count-up and starts counting the minimum value again. A channel selection control circuit 10 counts up an up-down counter 11 when an up channel selection instruction is generated, uses a D/A converter 12 to convert the signal into a DC voltage to increase the tuning voltage 13. A coincidence detection circuit 9 gives a pulse signal 16 to the gate 21 when the output of the counter 8 is coincident with the output of the counter 11. Only a 1st shot of the pulse signal 16 passes through the gate 21 and it is given to a channel selection display superimposing circuit 3 as a channel selection display signal 19.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62181338A JP2811067B2 (en) | 1987-07-21 | 1987-07-21 | Tuning display circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62181338A JP2811067B2 (en) | 1987-07-21 | 1987-07-21 | Tuning display circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6424682A true JPS6424682A (en) | 1989-01-26 |
JP2811067B2 JP2811067B2 (en) | 1998-10-15 |
Family
ID=16098950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62181338A Expired - Lifetime JP2811067B2 (en) | 1987-07-21 | 1987-07-21 | Tuning display circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2811067B2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6268373A (en) * | 1985-09-20 | 1987-03-28 | Seiko Epson Corp | Channel selection display device for television |
-
1987
- 1987-07-21 JP JP62181338A patent/JP2811067B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6268373A (en) * | 1985-09-20 | 1987-03-28 | Seiko Epson Corp | Channel selection display device for television |
Also Published As
Publication number | Publication date |
---|---|
JP2811067B2 (en) | 1998-10-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS57154983A (en) | Multiplying circuit of horizontal scan frequency | |
CA1040300A (en) | Digital synchronizing system | |
ES431139A1 (en) | Digital synchronization system | |
GB1429621A (en) | Display systems | |
ES8700821A1 (en) | Sychronizing the operation of a computing means with a reference frequency signal. | |
ES8103898A1 (en) | Television receiver synchronizing arrangement | |
JPS6424682A (en) | Channel selection display circuit for television receiver | |
JPS5752280A (en) | Line selector of television set | |
JPS55115775A (en) | Synchronizing signal generator | |
JPS6430376A (en) | Channel selection display circuit for television | |
JPS57106277A (en) | Counter device | |
JPS5617583A (en) | Television picture receiver | |
JPS53135513A (en) | Signal decision circuit of automatic channel selection device | |
SU1515396A1 (en) | Device for shaping video signal of inclined lines | |
JPS5577279A (en) | Forming circuit for control signal | |
KR840002746Y1 (en) | Television receiver | |
JPS5696526A (en) | Timing signal generating system | |
SU1626452A1 (en) | Device for automatic tv receiver tuning | |
JPS57129071A (en) | Field discriminating circuit | |
SU1149434A1 (en) | Signal-synchronizing of device video tape recorder | |
JPS54159122A (en) | Detection circuit for selection control signal for television audio multiplex broadcast transceiver | |
JPS5320724A (en) | Timing control device for television picture receiver, etc. | |
JPS5545236A (en) | Multiplex broadcast receiving unit | |
JPS55136771A (en) | Gen-lock control circuit for television synchronizing signal generator | |
JPS5588472A (en) | Reset pulse forming circuit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |